| Item Name | Screw Shoulder |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5305 Screws |
| National Item Identification Number (NIIN) | 01-142-6283 (011426283) |
| NCB Code | USA (01) |
| Manufacturer | Huck International Inc, Lisi Aerospace Canada Corp, Sps Technologies Inc, Hi Shear Corporation, Alcoa Global Fasteners Inc, Boeing Company The |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| HT4020-4-7AX | huck international inc | screw shoulder | 97928 | RFQ |
| HT4020-4-7AX | lisi aerospace canada corp | screw shoulder | l4528 | RFQ |
| HT4020-4-7AX | sps technologies inc | screw shoulder | 80539 | RFQ |
| HT4020-4-7AX | hi shear corporation | screw shoulder | 73197 | RFQ |
| HT4020-4-7AX | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| ST3M653C4-7A | boeing company the | screw shoulder | 76301 | RFQ |
| ST3M653C4-7A | alcoa global fasteners inc | screw shoulder | 92215 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AASA | THREAD LENGTH | 0.442 INCHES MINIMUM AND 0.509 INCHES MAXIMUM |
| AASB | FASTENER LENGTH | 0.890 INCHES MINIMUM AND 0.937 INCHES MAXIMUM |
| AASK | HEAD STYLE | FLAT COUNTERSUNK UNDERCUT |
| AASL | HEAD DIAMETER | 0.502 INCHES MINIMUM AND 0.507 INCHES MAXIMUM |
| AASU | HEAD HEIGHT | 0.065 INCHES MINIMUM AND 0.067 INCHES MAXIMUM |
| AATN | SHOULDER DIAMETER | 0.2646 INCHES MINIMUM FIRST SHOULDER AND 0.2651 INCHES MAXIMUM FIRST SHOULDER |
| AATX | SHOULDER LENGTH | 0.361 INCHES MINIMUM FIRST SHOULDER AND 0.383 INCHES MAXIMUM FIRST SHOULDER |
| ABQZ | INTERNAL DRIVE STYLE | HIGH-TORQUE |
| AHYM | NOMINAL THREAD DIAMETER | 0.250 INCHES |
| CMLP | THREAD QUANTITY PER INCH | 28 |
| CRSQ | COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| CWYB | SHOULDER SHAPE | ROUND FIRST SHOULDER |
| FEAT | SPECIAL FEATURES | FURNISHED WITH ONE RUBBER O RING |
| MATT | MATERIAL | STEEL COMP XM-13 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNJF |
| Components Related to NSN - 5305-01-142-6283, 5305011426283 | ||||
| 5340-01-631-5368 (5340016315368) | 5330-01-297-3590 (5330012973590) | 5360-00-245-2131 (5360002452131) | 5365-01-571-1663 (5365015711663) | |
| 5342-01-255-3551 (5342012553551) | 5330-01-556-4440 (5330015564440) | 5330-01-613-3472 (5330016133472) | 5342-01-259-3873 (5342012593873) | |
| 5340-00-575-1873 (5340005751873) | 5310-00-151-9032 (5310001519032) | 5315-01-622-0550 (5315016220550) | 5340-01-429-0419 (5340014290419) | |
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